Historical 24-hr PSI
What this data shows
Published by National Environment Agency. 108,864 records. Fields include 24hr Psi, North, South, East (6 columns in total). Covers 2014-04-01 to 2026-08-31. Last updated 2026-10-01.
Description
National Environment Agency historical CSV of Singapore’s regional 24-hour Pollutant Standards Index from April 2014 through May 2026. Columns cover North, South, East, West, and Central readings alongside the 24-hour PSI series. Environmental researchers and haze analysts reconstruct daily air-quality episodes across the island’s monitoring regions.
Official description
Historical regional 24-hr PSI
- Last updated
- Coverage
- 2014-04-01 – 2026-08-31
- Rows
- 108,864
- Columns
- 6
Data
| 24hr Psi | North | South | East | West | Central |
|---|---|---|---|---|---|
| 1/4/2014 1:00 | 55 | 54 | 54 | 58 | 54 |
| 1/4/2014 2:00 | 55 | 54 | 54 | 59 | 54 |
| 1/4/2014 3:00 | 55 | 55 | 54 | 60 | 55 |
| 1/4/2014 4:00 | 56 | 55 | 55 | 62 | 55 |
| 1/4/2014 5:00 | 57 | 55 | 56 | 63 | 56 |
| 1/4/2014 6:00 | 58 | 56 | 56 | 64 | 56 |
| 1/4/2014 7:00 | 59 | 57 | 57 | 65 | 57 |
| 1/4/2014 8:00 | 60 | 57 | 58 | 66 | 58 |
| 1/4/2014 9:00 | 59 | 57 | 58 | 66 | 59 |
| 1/4/2014 10:00 | 60 | 58 | 58 | 67 | 59 |
Preview shows 10 rows and 6 columns. Use the table search or download the CSV for the full data.
Columns
| Column | Type | Categorical |
|---|---|---|
| 24hr Psi | Text | No |
| North | Text | Yes |
| South | Text | Yes |
| East | Text | Yes |
| West | Text | Yes |
| Central | Text | Yes |